Abstract: In order to meet the various needs of information collection and engineering supervision in the construction management process of subway engineering projects, this paper designed and developed a multi-dimensional information integration supervision system for subway engineering projects, elaborated on the overall architecture, technical architecture, system functions, and key technologies of the system, implemented multi-dimensional information visualization, spatial management of multi-source heterogeneous data integration, and construction safety management for subway engineering projects. The system has been put into operation in various work areas of the Shenzhen Metro Line 14 project, with good operational results, good practicality, scalability, and visual application effects. It provides a feasible solution for the information integration supervision of subway engineering projects.